折疑論 2.132

2.132

元氣混沌。孝在其中（天地未判。混沌乃一。元氣未分之前。孝道之理已在其中）。

When the primordial qi was in chaos, filial piety was already within it (before Heaven and Earth separated, the chaos was undivided; before the primordial qi had divided, the principle of the Way of filial piety was already within it).